Telephone conferencing device



FIG. 1 is a front perspective view of the telephone conferencing device embodying the design of my present invention;

FIG. 2 is a rear perspective view of the telephone conferencing device, with a clip shown in phantom lines, which clip is not a part of the claimed design;

FIG. 3 is a top view of the telephone conferencing device with the clip shown in phantom lines;

FIG. 4 is a left-hand side view of the telephone conferencing device, illustrated with the clip shown in phantom lines;

FIG. 5 is a front view of the telephone conferencing device;

FIG. 6 is a bottom view of the telephone conferencing device with the clip shown in phantom lines; and,

FIG. 7 is a rear view of the telephone conferencing device with the clip shown in phantom lines.

The broken, phantom line showings of the clip throughout the views are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a telephone conferencing device, as shown and described. 